Q: What are the prime factors of the number 67,581,731?

 A: 7, 53, 491

Why are those the prime factors of the number 67,581,731?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 67,581,731

67,581,731
Factor Arrows
79,654,533
Factor Arrows
71,379,219
Factor Arrows
5326,023
Factor Arrows
53491

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

7, 53, 491

We can check our work by multiplying all of the prime factors together: 7 x 7 x 53 x 53 x 491 = 67,581,731

This can also be written as 72 x 532 x 4911 = 67,581,731

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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